Calctan vs MultiCalc

Calctan is a high-precision scientific and financial tape calculator designed for iPhone and iPad. Built for students, engineers, accountants, and business professionals, Calctan bridges the gap between scientific computing and practical everyday finance. Edit complex formulas with ease, audit running totals on a printable tape, and enjoy a distraction-free workspace with zero ads. KEY FEATURES 1. SMART FORMULA WORKSPACE • Tap-to-Edit Cursor: Tap anywhere in your expression to fix numbers, operators, or parentheses instantly—no need to clear your work and start over. • Dedicated Undo & Redo: Step backward and forward through previous edits effortlessly with intuitive controls. • Live Syntax & Instant Preview: Real-time calculation results with automatic balancing of parentheses as you type. • Fluid Multi-Line Display: Dynamic scaling ensures long, complex formulas are never cut off. 2. ADVANCED SCIENTIFIC ENGINE • Complete Math Suite: Trigonometric functions (radians/degrees, inverse, hyperbolic), factorials, permutations, powers, roots, modulo, and logarithms. • True Order of Operations: Context-aware order of operations with high-precision calculations that eliminate floating-point rounding errors. • Built-in & Custom Constants: Standard libraries for mathematics, physics, and chemistry, plus custom slots for tax rates, currency multipliers, or business margins. 3. ACCOUNTING TAPE & REPORT EXPORT • Auditable Calculation History: Every calculation is automatically logged on a persistent digital paper tape. • Label & Categorize: Add custom notes, tags, and project labels to organize expenses, homework sets, or client billing. • Batch Operations: Select multiple past entries to calculate running totals on the fly. • AirPrint & PDF Export: Generate clean, itemized calculation sheets ready to print, save, or share. 4. DESIGNED FOR PRODUCTIVITY • Haptic Feedback & Precision Control: Smooth cursor dragging and tactile feedback optimized for high-speed input. • iPad Multitasking: Full support for Split View, Slide Over, external keyboards, and trackpads. • Seamless iCloud Sync: Keep your saved formulas, custom constants, and calculation tapes synchronized across all your devices. • High-Contrast Themes: Handcrafted color palettes engineered to minimize eye strain during long study or work sessions. • Private & Ad-Free: Zero tracking, no telemetry, and no ads. Your calculations remain strictly on your device and private iCloud storage. PERFECT FOR: • STEM & College Students: Algebra, calculus, physics, and lab assignments with clear, step-by-step editing. • Finance & Accounting: Tax prep, budgeting, invoice balancing, and expense verification with itemized logs. • Retail & Small Business: Fast customer totals, margin/discount calculations, and printable audit trails.

Tired of juggling apps or losing your place on a single calculator? MultiCalc redefines multitasking with six independent calculators on one screen. Effortlessly swipe between six calculators, give each one a custom name (like "Shopping" or "Homework"), and see all your results at a glance. Instantly add values from any calculator to a running total, making it perfect for comparing figures, budgeting, and complex multi-step problems. --- Upgrade to MultiCalc Pro --- Take your calculations to the next level. Unlock the ultimate toolkit with a single in-app purchase: • Powerful Unit Converter: Instantly convert length, weight, volume, temperature, speed, and more. Perfect for the kitchen, workshop, or travel. • Full Scientific Calculator: Unlock trigonometry (sin, cos, tan), logarithms, factorials, and more for complex engineering and academic problems. • Advanced Calculation History: Save, pin, and reuse previous calculations. Your pinned history acts as a powerful set of custom memory values, complete with their original context. • Ad-Free Experience: Enjoy a clean, focused interface with no interruptions. Key Features: Manage six independent calculators simultaneously. Assign custom names for easy organization. Combine results into a single, running total. Modern, intuitive, dark-themed interface. [Pro] Powerful multi-category Unit Converter. [Pro] Full suite of scientific functions. [Pro] Interactive history with pinning for memory. [Pro] Completely Ad-Free. Whether you're a student, a professional, or just need to keep track of daily expenses, MultiCalc is the only calculator you'll need. Download now and transform the way you calculate!